Affiliation:
1. School of Advanced Materials Science and Engineering Sungkyunkwan University (SKKU) Suwon 16419 Republic of Korea
2. Department of Materials Science and Engineering Center for Human‐oriented Triboelectric Energy Harvesting Yonsei University Seoul 03722 Republic of Korea
Abstract
AbstractImplantable medical devices (IMDs) provide practical approaches to monitor physiological parameters, diagnose diseases, and aid treatment. However, device installation, maintenance, and long‐term implantation increase the risk of infection with conventional IMDs. Therefore, medical devices with biocompatibility, controllability, and miniaturization are highly demandable. An ultrasound‐driven, biodegradable, and injectable triboelectric nanogenerator (I‐TENG) is demonstrated to reduce the risks of implant‐related injuries and infections. The injection can be given by subcutaneous injection with a needle to minimize the implantation incision. The stable output of I‐TENG is driven by ultrasound (20 kHz, 1 W cm−2), with a voltage of 356.8 mV and current of 1.02 µA during in vivo studies and an electric field of about 0.92 V mm−1 during ex vivo experiments. The cell scratch and proliferation assays showed that the delivered electric field effectively increased cell migration and proliferation, indicating a significant potential to accelerate healing with electricity.
Funder
National Research Foundation of Korea
Subject
General Materials Science,General Chemistry
Cited by
26 articles.
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